Photographic-printing frame.



PATENTED JUNE 7, 1904.

W. E. BURNETT. PHOTOGRAPHIC PRINTING FRAME. APPLICATION FILED JULY 29.was. RENEWED MAY 18. 1904.

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No. 762,228. PATENTED JUNE 7, 1904. W; E. BURNETT.

PHOTOGRAPHIU PRINTING FRAME.

APPLICATION FILED JULY 29, 1903. RENEWED MAY 18. 1904.

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UNITED STATES Patented June '7, 1904.

PATENT OEEicE.

PHOTOGRAPHlC-PRINTING FRAME.

SPECIFICATION forming part of Letters Patent No. 762,228, dated J une'7, 1904 Application filed July 29, 1903. Renewed May 18,1904. SerialNo. 208,522. kNo model.)

To all wit/mt it many concern:

Be it known that I, TILLIAM E. BURNE T, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented and produced new and original Improvements in Photographic-Printing Frames; and I do hereby declare the following to be a full,clear, and exact descrip tion of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to numeralsof reference marked thereon, which form a part of this specification.

The objects of this invention are to facilitate the work of examining aphotographic print as the same is being subjected to actinic rays of thesun or other light in connection with a suitable negative, to quickenthe work of loading or inserting the negative and sensitive paper in theframe, to reduce the liability of displacing the paper during theprinting process, to reduce the liability of the negative dropping outof the frame when changing the paper, and to secure other advantages andresults, some of which may be referred to hereinafter in connection withthe description of the working parts.

The invention consists in the improved photographic-printing frame andin the arrangements and combinations of parts of the same, allsubstantially as will be hereinafter set forth and finally embraced inthe clauses of the claim.

Referring to the accompanying drawings, in which like numerals ofreference indicate corresponding parts in each of the several iigu res,Figure 1 is a plan of the back of my improved printing-frame. Fig. 2 isa section of the same on line :0, a certain sectional back plate beingremoved therefrom. Fig. 3 is a sectional view of the said back plate onthe same line 11. Fig. 4 is a detail section of the body portion of theframe, taken on an enlarged scale at line 1 Fig. 1. Fig. 5 is a sideview of the body portion of said frame partly broken away. Fig. 6 is anend view of the frame. Fig. 7 is a plan of one end of thebody portion,showing certain catching devices; and Fig. 8

is a plan of a part of a hinged section of said frame.

In said drawings,10 indicates the body portion of the frame, which ispreferably of pieces of wood suitably joined together in oblongrectangular form and open at the center to permit passage of the lightto the sensitive paper lying back of the negative arranged therein.

11 indicates a seat for the negative formed at the inner side of thebody of the frame near the front thereof. Near one end of the bodyportion of the frame the same is thicker or is raised above the oppositeend, as at 12, the said raised part being beveled, as at 13, where thesaid body portion of the frame is provided with hinge connections for ahinged framescction 1a, which is of a thickness about equal to thedifference between the thickness of the low and elevated parts of theframe-body 10, so that when said hinged section 14 lies against said lowpart of the frame-body it will effect a uniform thickness of the frameat both ends. The hinged ends 14:1 of the hinged section of the frameare beveled, as shown at 15, so that the hinged section can turn on itshinge pin 16, Figs. 5, 7, alimited distance sufficient to permit theoperator to observe the condition of the photographic print, ashereinafter described. At the opposite longitudinal sides of the frameare secured flat resilient metal pieces 17 17, preferably as wide as thethicker part of the frame-body, which are rigidly fastened to the saidframe-body at its elevated part; but at the thin end of the frameopposite said elevated part said resilient pieces are free to movelaterallyaway from the body and serve as spring-catches to hold thehinged section closed. Said spring-catches are perforated, as at 18, toreceive the pins 19 on the opposite sides of the hinged sections 14:.The relation of the pins 19 and perforations 18 may be changed, as isobvious. The metal pieces 17 are also perforated where rigidly fixed tothe body portion of the frame, as shown in Fig. 5, to receive thehinge-pins 16. Said hingepins 16 are stationed on the line where theoppositely-inclined planes of the bevels 13 15 intersect and arepreferably fixed on plates 20, fastened to the sides of the hingedsection 14. as shown in Figs. and 8.

To release the hinged section 14, held in its closed position by thecatching means 17 19, I have provided the construction shown in Figs. 5,6, and 7, where the body of the frame is grooved from side to side atits thin end. A wedge rod or plate 21 fits the groove, so as to slideinward therein away from the end of said frame, such sliding beingeffected by pressure of the thumb on the outer edge of said wedge-rod atthe finger-recesses 22 22, formed in the outer side or edge of the thinend of the frame. The oppositely-beveled ends of the rod 21 impinge onthe pins 23, Fig. 7, fastened to the spring-metal pieces 17 and inwardlyextending to a position to be engaged by said rod, thus engaging, whenthe wedge-rod is pressed inward, the pins 23, and the resilient pieces17, to which they are fastened, will be pressed outward, as will beobvious, and this action will throw the perforated ends of said pieces17 away from the short pins 19 to effect the desired release. Thusreleased the hinged section 14, attached to the frame-body, is thrownatits free end upward or away from said body by springs 25, seated on ashoulder 26, formed at the inner side of said body and held thereon byscrews 27 or otherwise. The free ends of the springs cross thehinge-joints and press up- I ward on the pins 28 of the hinge-section 14to open up said section. At the lower or inner side of said hingedsection 14 at opposite sides of the frame are thin inwardly projectingplates or fingers 30 (shown clearly in Figs. 4 and 8) and adapted toextend between the negative and the opposite edges of the sensitivepaper to draw the latter away from said negative. When the hingedsection is open, the said paper being held to the negative by onesection and at the opposite end of the frame to the hinged section 14 bysaid fingers or plates 30 when said hinged section is open.

The sectional back plate 35 is clamped at one end against the negativeby the springclamp 36, having opposite-extending arms 37, adapted toengage the spring-catches 38, attached to the opposite sides of theframe-body. Said sectional back plate 35 is jointed in line with thehinge-pins l6, and the sections 351 352 thereof are beveled incorrespondence with the bevels 13 v15, so that the section 352 willfreely turn with the hinged section 14,

gether, as in Fig. 3, under usual conditions, they are adapted to entera staple 44 at the free end of the hinged section 14. Thus the said armsare adapted to press the back-plate section 352 down firmly against thenegative or paper lying between when the hinged section 14 is caughtupon the body 10, as hereinbefore described, and yet the hinge action ofsaid back-plate section and hinged framesection 14 will be simultaneousunder the power of the springs 25 when the section 14 is released fromthe springs 17 17. Said arms 42 may be employed in connection withcatching projections 45 at opposite side of the frame, in which eventthe said arms may be turned to lie oppositely at right anglesto theposition of Fig. 1, their free ends entering under said projections 45to hold the section 352 of the back plate in place. Said arms 42 arepreferably seated on a transverse metallic plate 45, having raisedbearings 47 at opposite ends closely adjacent to the projections 45,which tend to hold the free ends more positively and firmly in placebeneath said projections.

In practicing the invention I first remove the back plate 35, preferablyby pressing the catches 38 38 outward and withdrawing the tongues 42from the staple 44. I then press the wedge-bar 21, throw thecatching-springs I 17 17 outward, and permit the hinged section 14 tofly open to insert the negative on the seat 17, said negative thus lyingbetween its seat and the stay projections or fingers 30. I then closethe said hinged section 14, so that the paper-retaining projections orfingers 30 are brought down on the negative at opposite sides thereof,the hinged sections 14 catching automatically when pressed in closing. Ithen spread the paper over the negative and the retaining projections orfingers 30, reinsert the back plate, and subject the paper tolight-rays, as heretofore. When the printing is to be examined, theoperator presses on the wedge-rod 21 to release section 14, when thelatter flies open, carrying the paper with it, and exposes the sensitiveside of said paper. If not sufficiently exposed, the section 14 is againclosed and automatically fastened by the springs 17 and this may berepeated as often as necessary, the operations being con venient andconducing to an economy of time and labor.

Having thus described the invention, what I claim as new is 1. Thecombination of the frame-body having a seat for a negative, aspring-catch for a hinged section and catches for a back plate, of saidhinged section having a retaining projection or finger for the sensitivepaper, and a sectional back plate, substantially as described.

2. The combination with the frame-body having a seat for a negative andcatches for a hinged section, and a back plate, of said hinged sectionjoined to said body, said back plate formed in sections, one hinged tothe other in line with the hinge center of said hinged section,substantially as set forth.

3. The combination with the frame-body having a seat for a negative andcatches, a hinged section and a back plate, of said section hinged tosaid body, a spring for automatically opening said hinged section and acatch for holding the same closed, and said back plate formed insections, one hinged to the other in line with the hinge center of saidhinged section, substantially as set forth.

4. The combination with the frame-body having a seat for a negative andcatches, a hinged section and a back plate, of a said section hinged tosaid body, and said back plate formed in sections, one hinged to theother in line with the hinge center of said hinged section, and catchesfor each section of said back plate, one engaging the body and the otherthe hinged section of the frame, substantially as set forth.

5. The combination with the frame-body having a seat for a negative, andat one end having a transverse slot in which a wedge-rod is arranged, ofsprings at opposite sides of said body adapted to fasten a hingedsection and pins to engage the said wedge-rod, the said springs beingthrown by said wedge-rod out from catching relation with said hingedsection, said hinged section in connection with said frame-body, asectional back plate, and means for securing said back plate in theframe.

6. The combination with the frame-body having a seat for a negative, andat one end having a transverse slot in which a wedge-rod isarranged, ofsprings at opposite sides of said body adapted to fasten a hingedsection, and to be forced by said wedge-rod out from catching relationwith said hinged section, said hinged section in connection with saidframebody, a sectional back plate, and fasteningsprings attached to eachsection of the back plate, one of said sections having a pair of springsarranged on a single pivot, and adapted to be turned to lie in a givenline in plan, lengthwise of the device, the hinged section of the framebeing provided with a staple to receive the free ends of said pair ofsprings.

7. The combination with the frame-body having a seat for a negative, andat one end having a transverse slot in which a wedge-rod is arranged, ofsprings at opposite sides of said body adapted to fasten a hingedsection, and pins to engage the said wedge-rod, the said springs beingthrown by said wedge-rod out from catching relation with said hingedsection, said hinged section in connection with said frame-body, asectional back plate, and fastening-springsecured to one of the sectionsand lying in the longitudinal center line of the frame, and at its freeend adapted to engage the free end of the hinged section.

8. The improved photographic printing frame in which is combined asectional back plate and a frame inclosing said black plate andcomprising a frame-body, and a hinged section having, at opposite sidesnear the hinges of said section retaining projections for the sensitivepapers, substantially as set forth.

9. The improved photographic printing frame herein described comprisinga back plate and a frame consisting of a frame-body, a hinged section,catches for holding the section closed, and retaining projectionsdisposed near to the hinges of said section, substantially as set forth.

10. In a photographic-printing frame, a back plate in hinged sectionsand a frame in hingedsections, one of the frame-sections havinginwardly, projecting, retaining-plates adapted to enter between thenegative and sensitive paper and hold the latter to one of the sectionsof the back plate, substantially as set forth.

11. In a photographic-printing frame, the sectional back plate combinedwith a sectional frame, said plate and frame having coincidinghinge-joints, one of the frame-sections having retaining projectionsadapted to extend between the negative and the printing paper ormaterial to hold the latter to a section of the back plate.

In testimony that I claim the foregoing I have hereunto set my hand this3d day of July, 1903.

IVILLIAM E. BURNETT.

IVitnesses:

CHARLES H. PELL, (J. B. PITNEY.

